I've owned one since February, it's a great vehicle to ride, very comfortable and very quick. I also feel that it's very balanced at low speeds.
The downside is that at 5ft 6in I really struggle to get more than my tiptoes on the ground and have resorted to buying a seat that claims to take 30mm off the seat height, lowering the rear suspension as much as possible and wearing motorcycle boots with a thick heel/sole.
The menu interface on the display is a pain to navigate and the Zontes app itself is a waste of space - even the dealers don't really know how to operate it.
I dropped the bike a couple of times during the first month, nothing major, just some scratches, but because it was a new bike I decided to replace all the damaged areas with new parts. The Zontes dealer I bought it from quoted me 30 days to get the parts - that was over 70 days ago and I'm still waiting, having paid a 50% deposit.
So, for me, great fun for riding but the dealer/spares network is absolutely pants.